Bluetooth Version: V3.0Operating Range: 10MCompatible with most devices with Bluetooth functionLi-ion Battery: 3.7V/100mAhDimensions: 3.94 in x 3.94 in x 1.18 in (10 cm x 10 cm x 3 cm)Perfect for traveling, waiting for the bus, jogs in the cold or just rocking out in your bedroom